Voltage regulator adjustment.... who did it? (1 Viewer)

[bj40green]

Hi Mudders,

Did any of you adjust the Voltage Regulator output voltage?
My output is a bit low +/- 13.1 Volt and I want it up to 13.8 Volt.
I found 2 procedures in the FSM's to do this.
The first one is by adjusting the gaps. This procedure is from a (printed in 1972) FJ40 FSM.

The second one is by bending the arms. This is from a (printed in 1978) BJ40 FSM.

I know, this for a 5 wire VR. Mine is a 3 wire as in the 1st pic.

This is how my VR looks.


When you look at the top where the spring is you notice that there is a strange bend in the spring. This looks different from both manuals. The pics in the manuals show a straight spring.
I think the PO has been fooling around with it, not knowing what he was doing.

Anyway, what I like to know is; How difficult or easy is it to do this adjustment and can you do this while the VR is on the fire wall or do I have to take the route to take out, make a little adjustment, put it in, check the voltage, if not ok take it out and so on, or shall I take the easy route and just by a new regulator?
If so what brand and part# do you suggest? I like to switch to a solid state one. If possible an adjustable one.

All suggestions and tips are welcome.

Thanks,

rudi

 

[fj404life]

I was never happy with my old regulator...
I went to a wagner solid state on my 69.
Check these 2 threads for more info on them.

https://forum.ih8mud.com/40-55-series-tech/95862-solid-state-replacement-mech-voltage-regulator.html
https://forum.ih8mud.com/40-55-series-tech/427069-1969-voltage-regulator.html

 

[bj40green]

I was never happy with my old regulator...
I went to a wagner solid state on my 69.
Check these 2 threads for more info on them.

https://forum.ih8mud.com/40-55-series-tech/95862-solid-state-replacement-mech-voltage-regulator.html
https://forum.ih8mud.com/40-55-series-tech/427069-1969-voltage-regulator.html

Thanks, good info in both threads.

Somewhere in the 1st thread somebody said "I wish I could understand how a VR works"

I found a page in a FSM with an explanation. See pic.


I also found a very good website to find a replacement VR.
Just type your OEM, Transpo or vendor code and you get a list of all possible replacements.
I selected OEM and typed (Toyota) 27700-60080 and this is what I got.
GOOD WAY Automobile Parts Co., Ltd.

I think I'm gonna do some shopping with the list in hand because here in Costa Rica we don't have stores like NAPA.

Rudi

 

[lostmarbles]

Thanks for the info Rudi.

Much as I dislike contaminating an old classic with new-fangled electronics, I converted my regulator to solid-state because I believe solid-state regulators to be better for both "reliability" and "long-life".

Oh....And they don't make any sound at all whereas my electromechanical regulator used to make noisy clicking sounds on occasions.

 

[lostmarbles]

Thanks for the info Rudi.

Much as I dislike contaminating an old classic with new-fangled electronics, I converted my regulator to solid-state because I believe solid-state regulators to be better for both "reliability" and "long-life".

Oh....And they don't make any sound at all whereas my electromechanical regulator used to make noisy clicking sounds on occasions.

 

[fenwaykid]

I've been searching all over for the VR settings and just now found them here...